/*
 * Copyright (C) 2005 - 2013 MaNGOS <http://www.getmangos.com/>
 *
 * Copyright (C) 2008 - 2013 Trinity <http://www.trinitycore.org/>
 *
 * Copyright (C) 2010 - 2013 ProjectSkyfire <http://www.projectskyfire.org/>
 *
 * Copyright (C) 2011 - 2013 ArkCORE <http://www.arkania.net/>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#ifndef ARKCORE_GRIDLOADER_H
#define ARKCORE_GRIDLOADER_H

/**
 @class GridLoader
 The GridLoader is working in conjuction with the Grid and responsible
 for loading and unloading object-types (one or more) when objects
 enters a grid.  Unloading is scheduled and might be canceled if
 an interested object re-enters.  GridLoader does not do the actuall
 loading and unloading but implements as a template pattern that
 delicate its loading and unloading for the actualy loader and unloader.
 GridLoader manages the grid (both local and remote).
 */

#include "Define.h"
#include "Grid.h"
#include "TypeContainerVisitor.h"

template<class ACTIVE_OBJECT, class WORLD_OBJECT_TYPES, class GRID_OBJECT_TYPES>
class GridLoader
{
public:

    /** Loads the grid
     */
    template<class LOADER>
    void Load (Grid<ACTIVE_OBJECT, WORLD_OBJECT_TYPES, GRID_OBJECT_TYPES> &grid, LOADER &loader)
    {
        grid.LockGrid();
        loader.Load(grid);
        grid.UnlockGrid();
    }

    /** Stop the grid
     */
    template<class STOPER>
    void Stop (Grid<ACTIVE_OBJECT, WORLD_OBJECT_TYPES, GRID_OBJECT_TYPES> &grid, STOPER &stoper)
    {
        grid.LockGrid();
        stoper.Stop(grid);
        grid.UnlockGrid();
    }
    /** Unloads the grid
     */
    template<class UNLOADER>
    void Unload (Grid<ACTIVE_OBJECT, WORLD_OBJECT_TYPES, GRID_OBJECT_TYPES> &grid, UNLOADER &unloader)
    {
        grid.LockGrid();
        unloader.Unload(grid);
        grid.UnlockGrid();
    }
};
#endif
